It doesn’t faze me what anyone says about me. It doesn’t matter what anyone says about me. I’m a totally different entity to what other people think. Michael and Tyson are two different people. I’m Tyson here.

It's the emotional punches that you can't see that are just overwhelmingly devastating to your heart - your moral fiber.

I still can’t believe [ Muhammad Ali ] knows my name. It astounds me he knows who I am. I first met Ali in 1976. I was locked up in a juvenile home and he came to visit. I’ve never forgotten it.

I want someone to attack me. No weapons. Just me and him. I like to beat men and beat them bad

Sometimes, the people we invest the most time in disappoint us the most.

Discipline makes hard men. Every hard man is capable of being a killer. But every killer is not capable of being a hard man. They can't endure that much. It's all about the endurance. That's why they become killers. Because they can't endure the pain. They need to kill the pain to stop it.

We all have to control our feelings. That's the thing that separates us from animals.